CN102944530A - Real-time telemetry system and method of greenhouse gas column concentration - Google Patents
Real-time telemetry system and method of greenhouse gas column concentration Download PDFInfo
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- CN102944530A CN102944530A CN2012104540334A CN201210454033A CN102944530A CN 102944530 A CN102944530 A CN 102944530A CN 2012104540334 A CN2012104540334 A CN 2012104540334A CN 201210454033 A CN201210454033 A CN 201210454033A CN 102944530 A CN102944530 A CN 102944530A
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Abstract
The invention discloses a real-time telemetry system and a real-time telemetry method of greenhouse gas column concentration. The real-time telemetry system comprises a fixed station building and a sun follower, wherein the station building is provided with an automatic sunroof; the sun follower is installed on a fixed platform in the station building and used for receiving sunlight from the sunroof, thereby automatically following the sun; emergent light of the sun follower passes through a sample tank to enter an infrared spectrometer, and an output end of the infrared spectrometer is connected with a computer; a micro weather station and a wireless data transmission antenna are installed outside the station building and connected to the corresponding input end of the computer; measured spectra and numerical simulation calculated spectra based on an atmospheric radiation transmission model are obtained simultaneously; and the greenhouse gas column concentration of various kinds is obtained in real time by using a nonlinear least-squares iteration method. According to the real-time telemetry system and the real-time telemetry method, the defects of the greenhouse gas three-dimensional high space-time resolution measurement technology are overcome, calibration data can be provided for airborne and satellite telemetry, and local long-term greenhouse gas observation results can be provided.
Description
Technical field
The present invention relates to environmental monitoring and protection, remote optical sensing field, specifically refer to a kind of greenhouse gases post concentration real-time telemetry System and method for.
Background technology
The Measurement accuracy greenhouse gas concentration is significant in fields such as energy-saving and emission-reduction, Environmental security, climate changes.At present, mainly adopt the gas chromatography of sampling earth's surface air and the monitoring means of mass spectrometric analysis method and in site measurement for the greenhouse gas concentration in the atmosphere of locality, adopt airborne active and Passive remote sensing for the specific region, adopt spaceborne Passive remote sensing and modeling research for the greenhouse effect of Global Scale.In addition, the high tower measurement result of minority also has report.In these measuring methods and system, the measuring equipment of gas chromatography and mass spectrometry method heaviness is expensive, the sampled measurements cycle is long; The result that airborne greenhouse gases are measured is limited, can not obtain the greenhouse gas concentration changing condition of yardstick continuous time; The remote measurement of satellite greenhouse gases and modeling result need ground pilum measurement of concetration result calibration.These technological means all can not obtain the greenhouse gases post concentration content that pushes up of the high time resolution power of locality from the earth's surface to the atmospheric envelope.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of greenhouse gases post concentration real-time telemetry System and method for, remedy the deficiency of greenhouse gases three-dimensional high time-space resolution measuring technique means, provide a kind of ground, quick, easy, real-time online remote measurement, relatively cheap, the many component of cost simultaneously-measured from the earth's surface to the atmospheric envelope measuring system and the method for the greenhouse gases post concentration content on top.
For addressing the above problem, technical scheme of the present invention is:
A kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: include a fixing station, described station is provided with automatic dormant window, be provided with a stationary platform in the station, sun tracker is installed on the stationary platform, sun tracker receives the sunshine that is entered by the skylight, and the emergent light of sun tracker enters infrared spectrometer after passing sample cell, and the output terminal of described infrared spectrometer is connected with computing machine; Described station also is equipped with miniature weather station and Wireless Data Transmission antenna outward, and miniature weather station and Wireless Data Transmission antenna all are connected to the corresponding input end of described computing machine.
Described a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: the size in described station skylight and angle of inclination are according to solar zenith angle and the position angle design of geographic position of living in and measurement period, and it is opened and closes by computer control.
Described a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: described sun tracker is adjusted the angle of pitch and the position angle of its internal mirror automatically in measurement period, all the time follow the tracks of the sun, so that the same angle of direct sunlight enters infrared spectrometer.
Described a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: described sample cell is filled with the long 10cm bottom surface diameter of low pressure HCl gas greater than the cylinder quartz sample pool of sun tracker emergent light beam diameter for inner.
Described a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: described infrared spectrometer is the Fourier infrared spectrograph based on both arms scan-type interferometer.
Described a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: described miniature weather station comprises temperature, pressure, humidity, solar radiation, blade face humidity sensor.
Described a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: the miniature weather station of described computing machine real time record meteorologic parameter, real time record is analyzed described infrared spectrometer data, finishes station data transmission and remote command reception by described antenna.
Described a kind of greenhouse gases post concentration real-time telemetry system is characterized in that: described computing machine can with described sun tracker interactive communication, can start, stop sun tracker work, inquiry, calibration sun tracker duty.
A kind of greenhouse gases post concentration real-time telemetry method, it is characterized in that: the described method of telemetering may further comprise the steps:
(1), when the meteorologic parameter obtained when the weather station reaches the instrument condition of work, automatic dormant window is opened, sun tracker is followed the tracks of the sun, the direct sunlight interferogram data that the infrared spectrometer record passes whole atmosphere; The interferogram that obtains is carried out pre-service, comprising: rejecting abnormalities interferogram, interferogram filtering;
(2), pretreated interferogram carried out Fourier transform obtain spectrogram, this spectrogram is carried out baseline correction and phase place correction, obtain the spectrogram that includes greenhouse gases information of actual measurement;
(3), calculate gas molecule standard absorption cross section according to the gas molecule line parameters database in the described computing machine, and in conjunction with meteorologic parameter data and website place priori gas concentration vertical distribution profiles that the weather station is measured, obtain total atmospheric spectral transmittance by pursuing line integral atmospheric radiation transmission numerical evaluation again;
(4), the spectral information of HCl gas obtains the response function of instrument in the described sample cell;
(5), can be obtained the spectrogram of numerical simulation calculation by known atmospheric envelope top solar spectrum, instrument response function, total atmospheric spectral transmittance; To be gas concentration Vertical Profile, frequency drift take state vector carries out nonlinear least square fitting as numerical evaluation spectrogram and the measured light spectrogram of independent variable, and loop iteration obtains the slant column intensity of gas to be analyzed;
Step (2)-(5) are in brief: by obtaining simultaneously measured spectra and based on the numerical simulation calculation spectrum of atmospheric radiation transmission, and obtain in real time the greenhouse gases slant column intensity by non-linear least square loop iteration method;
(6), can obtain vertical column concentration by the slant column intensity and the air quality factor that obtain.
Described a kind of greenhouse gases post concentration real-time telemetry method, it is characterized in that: described computing machine is parallel processing in interferogram data acquisition and the analysis of greenhouse gases post concentration quantitative, obtains simultaneously multiple greenhouse gases post concentration.
Beneficial effect of the present invention:
1, the invention provides a kind of ground, quick, easy, real-time online remote measurement, relatively cheap, the many component of cost simultaneously-measured from the earth's surface to the atmospheric envelope measuring system and the method for the greenhouse gases post concentration content on top.
2, the present invention has remedied the deficiency of greenhouse gases three-dimensional high time-space resolution measuring technique means, can provide calibration data for airborne spaceborne remote measurement, and local long-term greenhouse gases observed result can be provided.
Description of drawings
Fig. 1 is that system of the present invention forms structural representation.
Fig. 2 is greenhouse gases post concentration method of telemetering block scheme of the present invention.
Embodiment
Referring to Fig. 1, a kind of greenhouse gases post concentration real-time telemetry system, it is characterized in that: telemetry system includes a fixedly station 1, and described station 1 has automatic dormant window 2; Be installed on the sun tracker 4 on the station 1 interior stationary platform 3, receive the sunshine 5 that is entered by skylight 2, thereby from the motion tracking sun 6; The emergent light 7 of described sun tracker 4 passes sample cell 8, enters infrared spectrometer 9; The output terminal of described infrared spectrometer 9 is connected with computing machine 10; Outside the described station 1 miniature weather station 11 and Wireless Data Transmission antenna 12 are installed also, all are connected to the corresponding input end of described computing machine 10.
The size in described station skylight 2 and angle of inclination are according to the sun 6 zenith angles and the position angle design of geographic position of living in and measurement period, and it is opened and closes by computing machine 10 controls.
Described sun tracker 4 is adjusted the angle of pitch and the position angle of its internal mirror 13 automatically in measurement period, follow the tracks of all the time the sun 6, so that direct sunlight 5 same angles enter infrared spectrometer 9.
Described sample cell 8 is filled with the long 10cm bottom surface diameter of low pressure HCl gas greater than the cylinder quartz sample pool of sun tracker 4 emergent lights 7 beam diameters for inner.
Described infrared spectrometer 9 is the Fourier infrared spectrograph based on both arms scan-type interferometer.The incident light 14 of infrared spectrometer 9, through catoptron 15,16, beam splitter 17 is divided into two bundles, and is a branch of through catoptron 19 and corner cube mirror 20, a branch of through catoptron 18 and corner cube mirror 20.Two-beam forms optical path difference by the interferometer two arm horizontal scannings that catoptron 18,19 forms, and again through beam splitter 17, parabolic lens 21 interference light signal is converged on the photosurface of detector 22.
Described miniature weather station 11 comprises temperature, pressure, humidity, solar radiation, blade face humidity sensor.
The miniature weather station of described computing machine 10 real time record 11 meteorologic parameters, real time record is analyzed described infrared spectrometer 9 data, finishes station data transmission and remote command reception by described Wireless Data Transmission antenna 12.
Described computing machine 10 can with described sun tracker 4 interactive communications, can start, stop sun tracker 4 work, inquiry, calibration sun tracker 4 duties.
The method of telemetering may further comprise the steps:
(1), when the meteorologic parameter obtained when weather station 11 reaches the instrument condition of work, automatic dormant window 2 is opened, sun tracker 4 is followed the tracks of the sun 6, the direct sunlight 5 interferogram data that infrared spectrometer 9 records pass whole atmosphere.The interferogram that obtains is carried out pre-service, comprising: rejecting abnormalities interferogram, interferogram filtering;
(2), pretreated interferogram is carried out Fourier transform and obtain spectrogram.This spectrogram is carried out baseline correction and phase place correction, obtain the spectrogram that includes greenhouse gases information of actual measurement;
(3), calculate gas molecule standard absorption cross section according to the gas molecule line parameters database in the described computing machine, and in conjunction with meteorologic parameter data and website place priori gas concentration vertical distribution profiles that weather station 11 is measured, obtain total atmospheric spectral transmittance by pursuing line integral atmospheric radiation transmission numerical evaluation again;
(4), obtain the response function of instrument from the spectral information of described sample cell 8 interior HCl gases;
(5), can be obtained the spectrogram of numerical simulation calculation by known atmospheric envelope top solar spectrum, instrument response function, total atmospheric spectral transmittance.Numerical evaluation spectrogram and measured light spectrogram take state vector (gas concentration Vertical Profile, frequency drift) as independent variable are carried out nonlinear least square fitting, and loop iteration obtains the slant column intensity of gas to be analyzed;
Step (2)-(5) are in brief: by obtaining simultaneously measured spectra and based on the numerical simulation calculation spectrum of atmospheric radiation transmission, and obtain in real time the greenhouse gases slant column intensity by non-linear least square loop iteration method;
(6), can obtain vertical column concentration by the slant column intensity and the air quality factor that obtain.
Claims (10)
1. greenhouse gases post concentration real-time telemetry system, it is characterized in that: include a fixing station, described station is provided with automatic dormant window, be provided with a stationary platform in the station, sun tracker is installed on the stationary platform, sun tracker receives the sunshine that is entered by the skylight, and the emergent light of sun tracker enters infrared spectrometer after passing sample cell, and the output terminal of described infrared spectrometer is connected with computing machine; Described station also is equipped with miniature weather station and Wireless Data Transmission antenna outward, and miniature weather station and Wireless Data Transmission antenna all are connected to the corresponding input end of described computing machine.
2. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: the size in the skylight of described station and angle of inclination are according to solar zenith angle and the position angle design of geographic position of living in and measurement period, and it is opened and closes by computer control.
3. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: the angle of pitch of described sun tracker its internal mirror in measurement period and position angle are all adjusted automatically, all the time follow the tracks of the sun, the same angle of direct sunlight enters infrared spectrometer.
4. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: described sample cell is filled with the long 10cm bottom surface diameter of low pressure HCl gas greater than the cylinder quartz sample pool of sun tracker emergent light beam diameter for inner.
5. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: described infrared spectrometer is the Fourier infrared spectrograph based on both arms scan-type interferometer.
6. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: described miniature weather station comprises temperature, pressure, humidity, solar radiation, blade face humidity sensor.
7. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: the miniature weather station of described computing machine real time record meteorologic parameter, real time record is analyzed described infrared spectrometer data, finishes station data transmission and remote command reception by described Wireless Data Transmission antenna.
8. a kind of greenhouse gases post concentration real-time telemetry according to claim 1 system, it is characterized in that: described computing machine can with described sun tracker interactive communication, can start, stop sun tracker work, inquiry, calibration sun tracker duty.
9. greenhouse gases post concentration real-time telemetry method, it is characterized in that: the described method of telemetering may further comprise the steps:
(1), when the meteorologic parameter obtained when the weather station reaches the instrument condition of work, automatic dormant window is opened, sun tracker is followed the tracks of the sun, the direct sunlight interferogram data that the infrared spectrometer record passes whole atmosphere; The interferogram that obtains is carried out pre-service, comprising: rejecting abnormalities interferogram, interferogram filtering;
(2), pretreated interferogram carried out Fourier transform obtain spectrogram, this spectrogram is carried out baseline correction and phase place correction, obtain the spectrogram that includes greenhouse gases information of actual measurement;
(3), calculate gas molecule standard absorption cross section according to the gas molecule line parameters database in the described computing machine, and in conjunction with meteorologic parameter data and website place priori gas concentration vertical distribution profiles that the weather station is measured, obtain total atmospheric spectral transmittance by pursuing line integral atmospheric radiation transmission numerical evaluation again;
(4), the spectral information of HCl gas obtains the response function of instrument in the described sample cell;
(5), can be obtained the spectrogram of numerical simulation calculation by known atmospheric envelope top solar spectrum, instrument response function, total atmospheric spectral transmittance; To be gas concentration Vertical Profile, frequency drift take state vector carries out nonlinear least square fitting as numerical evaluation spectrogram and the measured light spectrogram of independent variable, and loop iteration obtains the slant column intensity of gas to be analyzed;
(6), can obtain vertical column concentration by the slant column intensity and the air quality factor that obtain.
10. a kind of greenhouse gases post concentration real-time telemetry method according to claim 9, it is characterized in that: described computing machine is parallel processing in interferogram data acquisition and the analysis of greenhouse gases post concentration quantitative, obtains simultaneously multiple greenhouse gases post concentration.
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| CN103543120A (en) * | 2013-09-26 | 2014-01-29 | 中国科学院安徽光学精密机械研究所 | Ground short wave infrared CO2 vertical column concentration remote measuring device |
| CN103674853A (en) * | 2013-11-13 | 2014-03-26 | 中国科学院安徽光学精密机械研究所 | Remote metering system for atmospheric pollution gas distribution in mobile area |
| CN103760125A (en) * | 2014-01-22 | 2014-04-30 | 中国科学院合肥物质科学研究院 | Method for improving inversion accuracy of high greenhouse gas concentration |
| CN103983599A (en) * | 2014-02-13 | 2014-08-13 | 中国科学院合肥物质科学研究院 | Method for inversing vertical column concentration of carbon dioxide in environmental atmosphere by utilizing direct-radiation solar spectrum |
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| CN103543120A (en) * | 2013-09-26 | 2014-01-29 | 中国科学院安徽光学精密机械研究所 | Ground short wave infrared CO2 vertical column concentration remote measuring device |
| CN103674853A (en) * | 2013-11-13 | 2014-03-26 | 中国科学院安徽光学精密机械研究所 | Remote metering system for atmospheric pollution gas distribution in mobile area |
| CN103674853B (en) * | 2013-11-13 | 2016-02-10 | 中国科学院安徽光学精密机械研究所 | A kind of mobile area Pollution Gas distribution telemetry system |
| CN103760125A (en) * | 2014-01-22 | 2014-04-30 | 中国科学院合肥物质科学研究院 | Method for improving inversion accuracy of high greenhouse gas concentration |
| CN103983599A (en) * | 2014-02-13 | 2014-08-13 | 中国科学院合肥物质科学研究院 | Method for inversing vertical column concentration of carbon dioxide in environmental atmosphere by utilizing direct-radiation solar spectrum |
| CN103983599B (en) * | 2014-02-13 | 2016-08-17 | 中国科学院合肥物质科学研究院 | The method of carbon dioxide vertical column concentration in direct sunlight spectrum inverting ambient air |
| CN105044034A (en) * | 2015-05-29 | 2015-11-11 | 中国科学院宁波材料技术与工程研究所 | Real-time measurement method for transparent solution concentration change |
| CN108918441B (en) * | 2015-11-25 | 2020-11-03 | 上海禾赛科技股份有限公司 | Gas remote measuring method and device |
| CN108918441A (en) * | 2015-11-25 | 2018-11-30 | 上海禾赛光电科技有限公司 | A kind of gas remote measurement method and device |
| CN107065936A (en) * | 2017-04-10 | 2017-08-18 | 中国科学院合肥物质科学研究院 | For covering a day solar tracking system for flux remote measurement |
| CN108593576A (en) * | 2018-06-12 | 2018-09-28 | 中国科学院上海技术物理研究所 | A kind of relevant detection meter of atmospheric greenhouse gas |
| CN109115693A (en) * | 2018-08-22 | 2019-01-01 | 中国科学院合肥物质科学研究院 | A kind of open path atmospheric condition method of telemetering and system based on reflecting mirror |
| CN109115693B (en) * | 2018-08-22 | 2021-05-04 | 中国科学院合肥物质科学研究院 | Open optical path atmospheric state remote measuring method and system based on reflector |
| CN109323992A (en) * | 2018-09-19 | 2019-02-12 | 中国科学院遥感与数字地球研究所 | A kind of atmosphere glyoxal remote-sensing monitoring method |
| CN109323992B (en) * | 2018-09-19 | 2021-03-09 | 中国科学院遥感与数字地球研究所 | Atmospheric glyoxal remote sensing monitoring method |
| CN110907382A (en) * | 2019-11-22 | 2020-03-24 | 光钙(上海)高科技有限公司 | Multi-component gas analyzer |
| CN117664900A (en) * | 2023-12-04 | 2024-03-08 | 安庆师范大学 | Survey multicomponent atmospheric gas post total amount measuring device |
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